Carbureter.



O. A. MORRIS & W. H. MERRITT.

CARBURETER.

APPLICATION FILED MAR.27,1911v Patented July 23, 1912.

MGM 14mm a) WHW Inventors Attj:

UNITED STATES CHARLES A. IVIQZRREIS AND WALTER H ZvKEREU'FTv PATENT OFFICE.

CARE URETER.

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' In the drawings like figurea of mfercm-e refer i ii o parts.ihroughout Th: IQSPQCUVG views Figure .l is a sectiontd elevation of the devised 2 is a sectinn psrtion of the OJ. 3 (16926 with a partin GlQVfliiHln Fig. 3

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and its contact- With the bottom of the wick; -30 is a coiled spring bearing upon the shoulder -16- of the tube -14 at its lower end, and at its upper end bearing against the lower portion of the skeleton valve -3Q-, this valve being adapted to move vertically over the top of the tube 14. The upper portion of the tube -14- is provided with a valve seat --3linto which to fit.

34 is a the top of the adjusting cam; .36- the cam; lock nut upon the shaft ---35- for the cam in proper position; 38 a drain drip cock in the cap 18"-.

The construction and operation of the deprojection or shoulder upon vice are as follows to give the best results.

The hydrocarbon entering through -29- and past the valve 27 flows into the float chamber -1, dependent upon the position of the float -Q3-, in the well known manner. It thereupon passes through the holes 28 and is absorbed and carried up by capillary action through the wick-15'- which rests as has already been stated; upon the mesh Q of the tube 9-. The mesh is ..djusted at a point about opposite the center of the holes 28, so that if water should enterthe float chamber it will drop to the bottom of the tube --1 t and may then be withdrawn through the drip cock -38 with any other impurities that may have collected. The hydrocarbon. however, passes up, as has already been described, ,through the wick l5. The valve -3Q33 being/ normally raised off its seat by the spring 30-, the normal supply of air coming in through the holes 1l, is free to pass over the top of the tube and Wick, where it picks up the vapor from the hydrocarbon at: the top of the wick. In the same way auxiliary air may enter through the valve '8-' as the demand requires.

In adjusting the carbureter to any particular engine or to meet particular conditions, the play of the valve -33 is regulated by turning the shaft -35 so that the cam 36- limits the vertical motion of the valve 83- to the degree necessary In the case of a small engine the adjustment of the valve would allow a comparatively small air passage over the tube and wick, whereas in a larger engine the same carbureter, by the adjustment of the cam -3(i, would permit alarger opening of the valve to give the necessary increased supply'of mixed vapor. Should for any reason a back firing occur, the explosion will at once close the valve 33- upon its seat 31-+ thus shutting off the supply of vapor and sealing the tube from the entry of flame.

the valve face -33- is adapted i valve; -35 the shaft of an 37- a quantlty by securing tion under the valve,

' one point to another by molecular action or It is evident that the wick -15 may be yery readily removed for renewal or cleaning, and after the carbureter is once adjusted for the particular car, it will be un necessary to make material changes, since there is no fine orifice which is easily clogged, or needle valve which requires delicate manipulation. Any change that may be necessary can be readily accomplished by the rotation of the cam 36 and ad justmcnt of air valve 8-. Irrespectiv" of the amount of hydrocarbon in the float chamber, the wick carries oil a constant capillary action for vaporizaso that if for any reason an excess of hydrocarbon is taken into the receptacle, this can do no harm and cannot possibly flood the cylinder. lVhen the receptacle becomes filled, if it should, the float necessarily closes off the supply valveuntil the level is reduced by the absorption through the wick, when the function is repeated. Further advantages are that the hydrocarbon is finely divided and readily mixes with the air, and water is not carried up throughthe wick, thus preventing the ellicicnt operation of the device, but accumulates on the bottom of the receptacle and may be drawn out with other impurities.

It will be understood that we do not limit ourselves to any particular form, proportion or construction of parts, or the material therefor, nor do we limitourselves to the exact arrangement set out in the specification and drawings, since in many ways these may be somewhat departed from without departing from the spirit of our invention.

It will further be understood that where we htwe used the word wick we do not mean by that any particular-substance or shape, but we include any absorbent means or device having capillary action or by which hydrocarbon may be transferred from attraction; but where we have spoken of the wick being Wholly exposed in the-tube, we mean that it is not covered up or inclosed from the air, it being understood that We do not regard the wires or ring 21- as being 1' a cover or inclosure of the Wick.

What we do claim as. new herein and desire to protect by Letters Patent, is:

1. In a carbureter, the combination of a hydrocarbon reservoir having transparent 1 walls; a reservoir cap and bottom; a central tube wholly open at its top and provided with a flange adapted to bear upon the cap of the reservoir and provided at its lower end with a thread and with an aperture com- 1 municating with the interior of the reservoir; a: nut adapted to screw upon said thread and force-the cap and bottomv against the top and bottom of the reservoir walls; a tubular air chamber superimposed upon and 1 screwed into said cap; an auxiliary air Valve in said-air chamber; a wick in the central tube wholly exposed at the upper end and the lower part of which extends to a point below the normalhydrocarbon level in the reservoirpa valve adapted to cover the end of the tube situated in the air chamber; means for keeping the valve normally oil from its seat; and means for adjusting the valve.

2. A carbureter comprising a hydro-car-- bon reservoir; means for controlling admission of hydro-carbon thereto; an air chamber having air inlets, superimposed upon the reservoir; a tube wholly open at its top; intermediate the hydro-carbon reservoir and air chamber; a wick therein, the lower end of which is adapted to be immersed in the hydro-carbon in the reservoir, and the upper end being exposed to the air in. said air chamber; and a valve for regulating the passage of air over the top of said wick, substantially as herein described.

3. A carhureter comprising a hydrocarbon reservoir; means for controlling the admission of hydrocarbon thereto; an'air chamber having air inlets superimposed upon the reservoir; a central tube wholly open at its top communicating at its lower end with the reservoir and at the other end with the air chamber; a wick therein, the lower end of which is adapted to be immersed. in the hydrocarbon in the reservoir, and the upper end being exposed to the air in said air chamber; a valve adapted to cover the upper end of said tube; means for keeping the valve off its seat; and means for adjusting the valve, substantially as described.

4. A earbureter comprising a hydro-car- V bon reservoir; an air chamber superimposed upon the reservoir; a tube wholly open at its top, intermediate the reservoir and the air chamber; air inlets in the air chamber substantially opposite the top of said tube; a wick in said tube, the lower end of which is adapted to be immersed in the hydro-carbon in the reservoir, and the upper end being exposed to the air in said air; chamber; a valve adapted to close the upper end of said tube; and means for adjusting the valve.

5. A carbureter comprising a hydro-carbon reservoir; an air chamber superimposed on the reservoir and provided with air inlets; a tube wholly open at the top connecting the reservoir and air chamber; a wick in said tube adapted to contact with the hydro-carb0n in the reservoir, its upper end being wholly exposed in the tube; and a valve seating on the top of the tube and adapted to regulate the passage of air over the top of the wick, substantially as herein described.

6. In a carbureter, the combination of a tube wholly open at its top; a wick therein, adapted to contact with and transfer hydrocarbon; a valve adapted to cover the upper end of the tube; and means for adjusting the same.

7. A carbureter comprising a hydrocarbon reservoir and supply inlet; a float controlled valve for regulating the supply; an air chamber superimposed on the reservoir and provided with air inlets; a regulatable auxiliary air inlet; a tube wholly open at the top connecting the reservoir and air chamber; a wick in said tube adapted to contact with the hydrocarbon in the reservoir and its upper end being wholly exposed in the tube; and a valve in the air chamber adapted to regulate the passage of air over the top of the wick.

8. In a carbureter, the combination of a hydrocarbon reservoir; a removable cap and bottom for said reservoir; a tube wholly open at its top and having an aperture com-1 municating with the interior of the reservoir; an air chamber superimposed upon the reservoir cap; a wick in the tube wholly exposed at the upper end, and its lower end being adapted to contact with the hydro-carbon in the reservoir; a valve adapted to cover the end of the tube in the air chamber; means for keeping the valve normally off from its seat on the tube, and means for ad justing the position of the valve relative to itsseat, substantially as herein described.

9. In a carbureter, the combination of a hydrocarbon reservoir; an air chamber superimposed thereon; a tube wholly open at its top, connecting the reservoir and the air chamber; capillary means in said tube; a valve adapted to cover the top of the tube, and provided with passages through which air can pass over the top'of the wick, and means for adjusting the position of the valve relative to its seat, substantially as'herein de of air over the end of said capillary means,

substantially as described.

CHARLES A. MORRIS. WALTER H. MERRITT. Witnesses:

EUGENE F. BROOKS, C. D. EMSON LOCKWOOD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

